Akihiro Munemasa

71 papers C 4Journal 66Unranked 1
YearRankTypeTitle / Venue / Authors
2026 J jnl
Antipodality of spherical designs with odd harmonic indices.
Discret. Math.
Ryutaro Misawa, Akihiro Munemasa, Masanori Sawa
2026 J jnl
Roux schemes which carry association schemes locally.
J. Comb. Theory, Ser. A
Alexander L. Gavrilyuk, Jesse Lansdown, Akihiro Munemasa, Sho Suda
2025 J jnl
Weakly distance-regular circulants, I.
J. Comb. Theory, Ser. A
Yuefeng Yang, Akihiro Munemasa, Kaishun Wang, Wenying Zhu
2024 J jnl
A note on t-designs in isodual codes.
Finite Fields Their Appl.
Madoka Awada, Tsuyoshi Miezaki, Akihiro Munemasa, Hiroyuki Nakasora
2024 J jnl
Classification of extremal type II $\mathbb {Z}_4$-codes of length 24.
Des. Codes Cryptogr.
Akihiro Munemasa, Rowena Alma L. Betty
2024 J jnl
Jacobi polynomials and harmonic weight enumerators of the first-order Reed-Muller codes and the extended Hamming codes.
Des. Codes Cryptogr.
Tsuyoshi Miezaki, Akihiro Munemasa
2023 J jnl
A note on t-designs in isodual codes.
CoRR
Madoka Awada, Tsuyoshi Miezaki, Akihiro Munemasa, Hiroyuki Nakasora
2022 J jnl
Quasi-symmetric 2-(41, 9, 9) designs and doubly even self-dual codes of length 40.
Appl. Algebra Eng. Commun. Comput.
Akihiro Munemasa, Vladimir D. Tonchev
2021 J jnl
A note on Assmus-Mattson type theorems.
Des. Codes Cryptogr.
Tsuyoshi Miezaki, Akihiro Munemasa, Hiroyuki Nakasora
2021 J jnl
Maximality of Seidel matrices and switching roots of graphs.
Graphs Comb.
Mengyue Cao, Jack H. Koolen, Akihiro Munemasa, Kiyoto Yoshino
2021 J jnl
Preface to the special issue dedicated to Professors Eiichi Bannai and Hikoe Enomoto on their 75th birthdays.
Graphs Comb.
Jack H. Koolen, Akihiro Munemasa, Atsuhiro Nakamoto, Katsuhiro Ota, Akira Saito
2021 J jnl
Signed analogue of line graphs and their smallest eigenvalues.
J. Graph Theory
Alexander L. Gavrilyuk, Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2019 J jnl
Bent Vectorial Functions, Codes and Designs.
IEEE Trans. Inf. Theory
Cunsheng Ding, Akihiro Munemasa, Vladimir D. Tonchev
2019 C conf
Classification of Self-dual Codes of Length 20 over ℤ
IMACC
Rowena Alma L. Betty, Akihiro Munemasa
2019 J jnl
Complex Hadamard Matrices Attached to a 3-Class Nonsymmetric Association Scheme.
Graphs Comb.
Takuya Ikuta, Akihiro Munemasa
2018 J jnl
Nonexistence of Certain Singly Even Self-Dual Codes with Minimal Shadow.
Electron. J. Comb.
Stefka Bouyuklieva, Masaaki Harada, Akihiro Munemasa
2017 J jnl
Godsil-McKay switching and twisted Grassmann graphs.
Des. Codes Cryptogr.
Akihiro Munemasa
2017 J jnl
On a Lower Bound for the Laplacian Eigenvalues of a Graph.
Graphs Comb.
Gary R. W. Greaves, Akihiro Munemasa, Anni Peng
2017 J jnl
On s-extremal singly even self-dual [24k + 8, 12k + 4, 4k + 2] codes.
Finite Fields Their Appl.
Masaaki Harada, Akihiro Munemasa
2017 J jnl
Some restrictions on weight enumerators of singly even self-dual codes II.
CoRR
Masaaki Harada, Akihiro Munemasa
2016 C conf
A Note on the Brawley-Carlitz Theorem on Irreducibility of Composed Products of Polynomials over Finite Fields.
WAIFI
Akihiro Munemasa, Hiroko Nakamura
2016 J jnl
Equiangular lines in Euclidean spaces.
J. Comb. Theory A
Gary R. W. Greaves, Jacobus H. Koolen, Akihiro Munemasa, Ferenc Szöllösi
2016 J jnl
On the classification of self-dual [20, 10, 9] codes over GF(7).
Finite Fields Their Appl.
Masaaki Harada, Akihiro Munemasa
2015 J jnl
Edge-signed graphs with smallest eigenvalue greater than -2.
J. Comb. Theory B
Gary R. W. Greaves, Jack H. Koolen, Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2014 J jnl
Fat Hoffman graphs with smallest eigenvalue at least -1 - τ.
Ars Math. Contemp.
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2014 J jnl
Fat Hoffman graphs with smallest eigenvalue greater than -3.
Discret. Appl. Math.
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2014 J jnl
On fat Hoffman graphs with smallest eigenvalue at least -3.
Ars Math. Contemp.
Hye Jin Jang, Jack H. Koolen, Akihiro Munemasa, Tetsuji Taniguchi
2014 J jnl
On the smallest eigenvalues of the line graphs of some trees.
CoRR
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2012 J jnl
A Complete Classification of Doubly Even Self-dual Codes of Length 40.
Electron. J. Comb.
Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
2012 J jnl
Classification of self-dual codes of length 36.
Adv. Math. Commun.
Masaaki Harada, Akihiro Munemasa
2012 J jnl
Fat Hoffman graphs with smallest eigenvalue greater than -3
CoRR
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2012 J jnl
Nomura algebras of nonsymmetric Hadamard models.
Des. Codes Cryptogr.
Takuya Ikuta, Akihiro Munemasa
2012 J jnl
On triply even binary codes.
J. Lond. Math. Soc.
Koichi Betsumiya, Akihiro Munemasa
2012 J jnl
The codes and the lattices of Hadamard matrices.
Eur. J. Comb.
Akihiro Munemasa, Hiroki Tamura
2011 J jnl
Classification of Quaternary Hermitian Self-Dual Codes of Length 20.
IEEE Trans. Inf. Theory
Masaaki Harada, Akihiro Munemasa
2011 J jnl
Fat Hoffman graphs with smallest eigenvalue at least $-1-τ$.
CoRR
Akihiro Munemasa, Yoshio Sano, Tetsuji Taniguchi
2010 J jnl
Classification of Generalized Hadamard Matrices
Electron. J. Comb.
Masaaki Harada, Clement W. H. Lam, Akihiro Munemasa, Vladimir D. Tonchev
2010 J jnl
Classification of quaternary Hermitian self-dual codes of length 20
CoRR
Masaaki Harada, Akihiro Munemasa
2010 J jnl
Classification of self-dual codes of length 36
CoRR
Masaaki Harada, Akihiro Munemasa
2010 J jnl
On graphs with complete multipartite µ-graphs.
Discret. Math.
Aleksandar Jurisic, Akihiro Munemasa, Yuki Tagami
2010 J jnl
Pseudocyclic association schemes and strongly regular graphs.
Eur. J. Comb.
Takuya Ikuta, Akihiro Munemasa
2009 J jnl
A complete classification of ternary self-dual codes of length 24.
J. Comb. Theory A
Masaaki Harada, Akihiro Munemasa
2009 J jnl
Classification of ternary extremal self-dual codes of length 28.
Math. Comput.
Masaaki Harada, Akihiro Munemasa, Boris Venkov
2009 C conf
Mass Formula for Even Codes over.
IMACC
Koichi Betsumiya, Rowena Alma L. Betty, Akihiro Munemasa
2009 C conf
On the Classification of Self-dual -Codes.
IMACC
Masaaki Harada, Akihiro Munemasa
2009 J jnl
Preface.
Eur. J. Comb.
Tatsuro Ito, Alexandre A. Ivanov, Akihiro Munemasa
2009 J jnl
There exists no self-dual [24, 12, 10] code over \mathbb
Des. Codes Cryptogr.
Masaaki Harada, Akihiro Munemasa
2008 J jnl
A new example of non-amorphous association schemes.
Contributions Discret. Math.
Akihiro Munemasa, Takuya Ikuta
2008 J jnl
Determination of weight enumerators of binary extremal self-dual [42, 21, 8] codes.
Finite Fields Their Appl.
Stefka Bouyuklieva, Masaaki Harada, Akihiro Munemasa
2008 J jnl
There exists no self-dual [24,12,10] code over F5
CoRR
Masaaki Harada, Akihiro Munemasa
2007 J jnl
On the covering radii of extremal doubly even self-dual codes.
Adv. Math. Commun.
Masaaki Harada, Akihiro Munemasa
2007 J jnl
Simple abelian quadruple systems.
J. Comb. Theory A
Akihiro Munemasa, Masanori Sawa
2006 J jnl
Hyperplane partitions and difference systems of sets.
J. Comb. Theory A
Ryoh Fuji-Hara, Akihiro Munemasa, Vladimir D. Tonchev
2006 J jnl
Some restrictions on weight enumerators of singly even self-dual codes.
IEEE Trans. Inf. Theory
Masaaki Harada, Akihiro Munemasa
2005 J jnl
On some self-dual codes and unimodular lattices in dimension 48.
Eur. J. Comb.
Masaaki Harada, Masaaki Kitazume, Akihiro Munemasa, Boris Venkov
2004 J jnl
A new quasi-symmetric 2-(56, 16, 6) design obtained from codes.
Discret. Math.
Akihiro Munemasa, Vladimir D. Tonchev
2004 J jnl
Arithme'tique et Combinatoire.
Eur. J. Comb.
Akihiro Munemasa, Gabriele Nebe, Patrick Solé
2004 J jnl
Extremal self-dual [40, 20, 8] codes with covering radius 7.
Finite Fields Their Appl.
Masaaki Harada, Akihiro Munemasa, Kenichiro Tanabe
2004 J jnl
On a 5-design related to an extremal doubly even self-dual code of length 72.
J. Comb. Theory A
Masaaki Harada, Masaaki Kitazume, Akihiro Munemasa
2004 J jnl
Spherical 5-designs obtained from finite unitary groups.
Eur. J. Comb.
Akihiro Munemasa
2003 J jnl
Preface.
Discret. Math.
Eiichi Bannai, Akihiro Munemasa, Sung-Yell Song, Paul M. Terwilliger
2002 J jnl
A Correction to "Incidence Matrices and Collineations of Finite Projective Planes" by Chat Yin Ho, Designs, Codes and Cryptography, 18 (1999).
Des. Codes Cryptogr.
D. Brozovic, Chat Yin Ho, Akihiro Munemasa
2001 J jnl
On type II codes over F
IEEE Trans. Inf. Theory
Koichi Betsumiya, T. Aaron Gulliver, Masaaki Harada, Akihiro Munemasa
2001 — conf
Type II Codes over F
AAECC
Koichi Betsumiya, Masaaki Harada, Akihiro Munemasa
1999 J jnl
Type IV self-dual codes over rings.
IEEE Trans. Inf. Theory
Steven T. Dougherty, Philippe Gaborit, Masaaki Harada, Akihiro Munemasa, Patrick Solé
1995 J jnl
On Perfect t-Shift Codes in Abelian Groups.
Des. Codes Cryptogr.
Akihiro Munemasa
1991 J jnl
Amorphous Association Schemes over the Galois Rings of Characteristic 4.
Eur. J. Comb.
Tatsuro Ito, Akihiro Munemasa, Mieko Yamada
1991 J jnl
On Pseudo-automorphisms and Fusions of an Association Scheme.
Eur. J. Comb.
Takuya Ikuta, Tatsuro Ito, Akihiro Munemasa
1991 J jnl
On nonsymmetric
J. Comb. Theory B
Akihiro Munemasa
1991 J jnl
Splitting fields of association schemes.
J. Comb. Theory A
Akihiro Munemasa
1986 J jnl
An analogue of
Graphs Comb.
Akihiro Munemasa